I've seen the kind of user ranking proposed in this article many times (from clueless users on to power users on to developers and elite hackers). The assumptio

I've seen the kind of user ranking proposed in this article many times (from clueless users on to power users on to developers and elite hackers). The assumption being that those up the ranking have an all-around better command of computers than those down. But it seems to me that a developer need not be a power user. It doesn't seem far fetched that one might be competent in (say) python while ignoring most of the innards of a unix-like system (modulo the part that she actually uses in her programming). Being able to code doesn't automagically turn you into an expert in, say, systemd service files.